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Ruby Developer

26 jobs

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26 jobs Posted Sort

Full Stack Engineer - Ruby on Rails

NewBe an early applicant HybridEuropeSenior

Senior full-stack engineer at FeedbackFruits, an Amsterdam-based edtech company, building the next version of its learning platform. Day-to-day involves full-stack delivery on Ruby on Rails, migrating Ember.js features to Rails + Hotwire, LMS integrations via LTI, and improving CI/CD and performance in a hybrid setup with 2-3 office days.

Agentic AI AI API Azure CI/CD +5 skills

65K – 92K €

Senior Ruby on Rails Backend Engineer — CI Pipelines

NewBe an early applicant EuropeSenior

Senior Backend Engineer on GitLab's Verify:Pipeline Execution team, working on the core of GitLab CI: the monolithic Ruby on Rails backend, database performance, and scalable orchestration of millions of CI jobs. The role includes mentoring engineers, driving architectural decisions, and collaborating with product and frontend teams.

GitLab Rails Ruby

Remote Staff Backend Engineer, AI Code Creation

NewBe an early applicant EuropeStaff

GitLab is hiring a Staff Backend Engineer to architect and lead AI-powered code creation features (code suggestions, reviews, generation), building scalable APIs in Ruby and Python and evaluating new AI/ML models while mentoring engineers in a distributed team.

AI API GitLab Machine Learning Python +1 skills

Remote Senior Ruby on Rails Backend Engineer

NewBe an early applicant RemoteEuropeSenior

A fully remote senior backend role designing and building scalable Ruby on Rails services, APIs, and microservices for cloud-based applications. The engineer collaborates with a distributed team across the full SDLC — architecture, implementation, testing, and production releases.

API Cloud Microservices Rails Ruby +1 skills

Remote Backend Engineer (Ruby) for Scalable CI/CD Platform

NewBe an early applicant Europe

Backend engineer at GitLab working on the CI/CD observability stack: contributing to core CI infrastructure, optimizing data handling, and building observability features for the Runner Fleet. Day-to-day work centers on Ruby on Rails and PostgreSQL for scalable, reliable systems in a highly asynchronous remote environment.

CI/CD GitLab Observability PostgreSQL Rails +1 skills

Remote Backend Engineer - Database Excellence

NewBe an early applicant RemoteEurope

An intermediate backend engineer on GitLab's Database Excellence group builds frameworks and tooling to keep application datastores scalable, healthy, and safe across GitLab.com and self-managed instances. Day to day involves cross-functional collaboration and performance work in a fully remote, distributed environment.

Staff Backend Engineer, DevEx (Ruby) – Remote, Equity

NewBe an early applicant RemoteEuropeStaff

Staff backend engineer focused on developer experience: writing hands-on Ruby (plus some Go) code, building developer tooling, improving CI/CD, modernizing testing, and scaling backend platforms on a remote-first, globally distributed EMEA/APAC team.

CI/CD Developer Experience Ruby

Ruby Backend Engineer - CI/CD Tools (Remote)

NewBe an early applicant RemoteEurope

An intermediate Ruby backend engineer joins a distributed, remote-first team to build and scale CI/CD pipeline authoring tools, including component catalogs and pipeline composition, with a focus on reliability and performance. Core stack: Ruby on Rails, PostgreSQL, and GraphQL, working asynchronously across time zones.

CI/CD GraphQL PostgreSQL Rails Ruby

Senior Ruby on Rails Backend Architect

NewBe an early applicant EuropeSenior

Senior Backend Engineer/Architect at Appical, an employee-onboarding SaaS platform, owning core Ruby on Rails services and shaping the backend's modular architecture. Day to day: shipping in small increments, driving API and data-model changes, mentoring engineers, and upholding testing, observability, and CI/CD standards.

API CI/CD Observability Rails Ruby +1 skills

Remote Rails Backend Engineer, Analytics Instrumentation

NewBe an early applicant RemoteEurope

GitLab is hiring an intermediate Ruby on Rails backend engineer to design and build the backend services, APIs, and data models behind product analytics instrumentation, working fully remote in a globally distributed team with a focus on privacy-conscious data collection.

Analytics API GitLab Rails Ruby

Remote Ruby Backend Engineer for CI/CD Catalog

NewBe an early applicant Europe

Backend engineer at GitLab building the CI/CD Pipeline Authoring features, specifically the CI/CD Catalog and Components, with a focus on reliability and performance. Day to day involves Ruby backend development and async collaboration with product managers, designers, and engineers in a remote, distributed team.

Senior Ruby on Rails Engineer — Remote-First Backend Lead

NewBe an early applicant RemoteEuropeLead

A Dutch SaaS company seeks a senior Ruby on Rails engineer to lead backend architecture on a mature Rails codebase for European accommodation management. Day-to-day work centers on PostgreSQL, REST APIs, TDD, and CI/CD, with front-end skills a bonus, in a remote-first setup with occasional office days.

API CI/CD PostgreSQL Rails REST +3 skills

Backend Engineer (Ruby on Rails)

NewBe an early applicant Europe

Backend Engineer (Ruby on Rails) at SkillLab: leads architecture, development, and scaling of a large Rails platform exposing a JSON API for a React front-end, with heavy focus on PostgreSQL optimization, code quality, documentation, and mentoring. Core stack: Ruby on Rails, PostgreSQL, Redis, Solr; Docker/Kubernetes a plus.

Agile AI API Docker Git +11 skills

80K – 90K €

Staff Backend Engineer (Ruby on Rails)

NewBe an early applicant EuropeStaff

Staff Backend Engineer at SkillLab will lead architecture, development, and scaling of a large Ruby on Rails platform exposing a JSON API for a React front-end. Day-to-day involves PostgreSQL performance optimization, technical leadership, code reviews, and mentoring, with AI-driven job and education matching as the product domain.

Agile AI API DevOps Docker +12 skills

80K – 90K €

Growth-Driven Fullstack Engineer (Ruby/Vue.js) - Remote

NewBe an early applicant Europe

Fullstack engineer on GitLab's Growth team, building backend Rails and frontend Vue.js experiments and onboarding experiences that improve user activation and retention. Works remotely and asynchronously with Product, Design, and Data Analysts to turn data-driven insights into product improvements.

GitLab Rails Ruby Vue

Senior Backend Engineer Ruby on Rails

NewBe an early applicant EuropeContractSenior

Senior backend engineer who leads the design, implementation, and reliability of Ruby on Rails services powering Appical's employee onboarding platform — owning APIs, data models, and observability end-to-end while mentoring engineers, with bonus exposure to AWS, Docker, and React.

API AWS Backbone.js CI/CD Cloud +9 skills

5K – 7K € / mo

Impactful Full-Stack Ruby on Rails Engineer | Hybrid

NewBe an early applicant Europe

Full-stack developer at Soverin, a privacy-first email provider in Amsterdam, building customer-facing webmail and control systems across backend and frontend using Ruby on Rails, Turbo, and Stimulus. Hybrid role within an international startup team.

Hybrid Rails Full-Stack Engineer for EdTech Impact

NewBe an early applicant HybridEuropeSenior

Senior full-stack engineer at FeedbackFruits, an Amsterdam-based edtech company, building the next version of its learning platform. Day to day you own delivery from backend logic to server-rendered UI and lead the Ember to Rails + Hotwire migration, working hybrid with onsite days in the Netherlands.

Senior Ruby on Rails Full-Stack Engineer — Hybrid (Amsterdam)

NewBe an early applicant EuropeSenior

Senior full-stack engineer at FeedbackFruits, an edtech company, building the next version of their learning platform end to end — backend logic in Ruby on Rails and server-rendered UI, driving the Ember-to-Rails+Hotwire migration, plus CI/CD, performance work, and LMS integrations. Hybrid role with anchor days at the Amsterdam HQ.

CI/CD Ember.js Rails

Full-Stack Engineer - Ruby on Rails

NewBe an early applicant HybridEuropeSenior

Senior full-stack engineer at FeedbackFruits (edtech, Amsterdam hybrid) building the next version of its learning platform: delivering features across a Ruby on Rails backend and server-rendered UI, migrating Ember.js to Hotwire, improving CI/CD, and maintaining LMS integrations via LTI.

Agentic AI AI API Azure CI/CD +5 skills

65K – 92K €